Add JS API for allocating network request IDs, capturing call stacks (#54051)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54051

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216

fbshipit-source-id: 5076d887254cd9711f86f72792e791eabc43f297